John Deere 644B Engine
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| Engine Detail | |
| John Deere | |
| turbocharged intercooled diesel | |
| 6-cylinder | |
| liquid-cooled | |
| Displacement | 531 ci 8.7 L |
| Bore/Stroke | 4.75x5.00 inches 121 x 127 mm |
| Power (net) | 145 hp 108.1 kW |
| Power (gross) | 160 hp 119.3 kW |
| Air cleaner | dry |
| Rated RPM | 2200 |
| Torque | 432 lb-ft 585.8 Nm |
| Torque RPM | 1500 |
| Starter | electric |
| Starter volts | 12 |
| Oil capacity | 24 qts 22.7 L |
| Coolant capacity | 49 qts 46.4 L |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on September 9, 2021 |